Answers: 2
Physics, 21.06.2019 23:20
In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.
Answers: 1
Physics, 22.06.2019 14:40
14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is
Answers: 1
Physics, 22.06.2019 18:00
Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
Answers: 1
Physics, 22.06.2019 22:00
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
In a Young's double-slit experiment, a set of parallel slits with a separation of 0.132 mm is illumi...
Mathematics, 26.01.2021 18:00
Mathematics, 26.01.2021 18:00
English, 26.01.2021 18:00
Chemistry, 26.01.2021 18:00
Mathematics, 26.01.2021 18:00
Social Studies, 26.01.2021 18:00
Physics, 26.01.2021 18:00
Mathematics, 26.01.2021 18:00
Computers and Technology, 26.01.2021 18:00
Mathematics, 26.01.2021 18:00